Car-truck.



PATENTED JAN. 21, 1908.

G. e. FLOYD. GAR TRUCK. APPLICATION FILED APR.11,1907.

UN T snares GEORGE G FLOYD, OF GRANITE, ILLINOIS, ASSIGNOR TO AMERICANSTEEL EOUNDRIES, OF

PATENT OFFICE.

NEW YORK, N. Y., A CORPORATION OF NEW JERSEY.

CAB-TRUCK.

No. 877,185. Specification of Letters Patent.

Patented Jan. 21-,- 1QOB Application filed ran 11. 1907.- Serial N9.367.512.

To all whom it may concern:

Be it known that I, GEORGE G. FL YD, a

citizen ofthe United States, residing at Granca ability of producingmorelperfect and rehe le castings of'the character mentionedthan hasheretofore been possible.

It has been customary to make east side-'- frames withtopcompressionmembers of channel shape. in cross-sectionwith its pair ofparallelmarginal fianges extended downwardly, and ith'as been usual toform the channelsha'peof this member by-means of a dry sand coreanohored or-supported'in. the green sand forming the greater portion ofthe mold. In a mold of this character there is.

' a junction or meeting of the greenfsand and.

' cient for the (present pur ose.

the dry sand coreat a point on the tension member. of-"the frame; It hasbeen found that the-tension members of such sidefrar'nes made in thismanner have weak places at such junctions and fail in service'at thispoint.- There are several theories regarding the reasonxfor thesedefects at the places mentioned, but they need not be considered sinceastatement of the fact of the defect, such as air-holes or'the like, issuffi- I have therefore invente a modrfie form of. side-frame which canbe cast without the use of a core in such position that it inconjunetionwith the greensand will render the lower tension chord or member of theframe defective. The change though slight means much'in the casting'ofthese frames, and the need for such change was only discovered afterconsiderable financial loss caused by making frames of the old style.The new form of frame hasxa channelcompression member, but the flangesinstead of projecting downwardly extend upwardly. Thereis, therefore, noneed of a junction of .dry and wet or greensand at the side of thetension memer, and the avoidance of defects therein is secured.

Another feature of my invention is the joining of the two side-frames ofthe truck by angle or similar bars connected to the frames near the topthereof instead of near the bot- ;tom as.is usual.

On the. accompanying drawingdorminga part of this specification Figure:1 is. a frag-.

mentary view, illustrating the manner ofcasting a portionof the oldstyle oflfr'ame Fig. 2

is a section on line 22 of Fi 1 ;'Fig. 3 1s a side elevation of my imrove dform of sideframe; andFig. 4 is a p an of a fragment of theside-frame shown in 3 on an enlarged scale and other parts. 1

' In Fig. .1 I haveillustrated the manner of castingthe oldstyle-of-car-truck side-frame having a .topchannel compression memberwith epending-flanges. The channel. shape of the compression member orrecess on its under side is' produced by means of a dry sand core-10suitably-anchored and support- .ed in the green-sand 11 which forms themold cavityfor he reater portion of the sideframe. Pre era ly the core10 is seated in a recess-12in :the green sand 11 in order to.properly-support-the same, and it will be noticed that at the point 13on the tension member 14 of the side-frame a junction of the green sandand the dry sand core is formed. Experience has shown that a side-frameproduced in a mold of this character has defets at the points 13 on thetension member, these devised a side-framelike that shown in Fig. 3

whichhas a top compression member 15 of channel shape 1; cross-section,its web 16 being horizontal and havingextended upwardly from itsopposite edges parallel marginal flanges 17. As is obvious, such aside-frame may be cast without a core for the production of its channelcompression member, and f or this reason castings of this form may bemade without the defects of the old style of sideframe shown in Fig. 1.

I have found that in some forms of trucks, the side-framos of which are(umnect-cd l.ogether near their lower portions by means of angle orsimilar bars it is rlillivnlt toromove the bolster, especially if thesame has a con siderable depth, owing to the inability to lower thebolster sufficiently because of the resence ofthe transverse-connectingbar or 'ars. Consequently, lqhavegilecidcd to dis' pense with the' u sejoft nsverse tie bars at 'the lower portion of .tlie side frames, and

bind theftwo frames onopp'osite sides df the truck' togetherby means ofbars positioned near the top, of the frame. In order toprovideconvenient means for the attachment of such transverse bars,'I castintegral with the side-frames shown-"in Fig' 3 inwardly andoutwardly-extended lugs 18 and 19 at theinner edges of the triangularopenings 20 on either'sidc-ot the. centrally disposed bolster opening21; To the underside of the compression web 16 and adjacent to the earsorhorizontal leg riveted to one 1 pair Of-tllB iii) P ates 22'an'd'to'th'e-web 16.; and also has a depending. .vertical leg riveted orotherwise secured' to a pairof the oppositely extended ears 18 and 19oneach frame-I By the use of such transverse bars the side-frames ares'ecurelyfastened together, and. by' the employment of the comparativelywide braceor' gusset plates 22. the frame'is considerably' stiffened. Itwill be noticed that'these angle bars 23 in no way interfere with theinsertion of the bolster through the aperture -21 or its removaltherethrough.

Ordinary mechanical changes may be made in the structure shown anddescribed without departure from my invention and without sacrificingits benefits and advantages.

I claim: v

1. A cast-metal truck side-frame having a top'compression member ofchannel shape in cross-section the flanges of the channelextendingupwardly away from the frame, substantially as described.

2. In' a railwaycar truck, the combination of a pair of side-frames eachhaving a top compression member and an integral lateral the compressionmember of each of said sidebrace plates. and-lateral lugs or ears,substantially as described.

. 3. In a railway car truck, the combination of a pair of side-frameseach having a top compression member of channel shape in fastened to theweb'o f each of said top comression members, and 4 a transverse angle 4.In a railway car truck, the combination compression member of channelshape in cross-section with its flanges extended upwardly, and one ormoretransverse bars connecting said side frames-and riveted t0 the undersurfaces of the webs of. said corn ression members, substantially asdescribe 5. in arailway car truck, the combination oi" a pair of"side-frames each'having a top cross-section with its flanges extendedupwardly and also having laterally extended lugs-0r ears projecting fromeach side, one or more brace or sst lates fastened to the under surface0 the W) gle bars connecting said side-frame, each eted respectivelytosaid brace plates and lateral lugs, substantially asl'cl'escribedn 6.In arailway car truck, the combination compression member, a centrallylsposed bolster opening and OthGI'QOPGIllngSDH oppoverse tie barsconnecting said side-frames, extended through said openings on: oppositesides of'the bolster'o nings and i'ivetedto members, substantiallyits-described.

. GEORGE G. FLOYD. Witnesses: a

JAs. H; Louis, E. B. SHEa'zm.

frames, and a transverse bar'riveted to said Y cross-section and alateral lug, a brace plate,

of a pair of side-frames each having a top.

compression member of channel shape 1n of each of said chanv nelcompression members adJacent to saidlugs or ears, and one ormore-transverse an having its angular'ly-disposed members ritf-f sitesides of said bolster. opening, and, transthe under surface 0 the'topcompression lug or ear, a brace or gusset plate fastened to ar havingits angularly-disposed members riveted respectively to' said braceplates and lateral lugs orears, substantially as described.

of a pair-of side frames-leach havin a top

